CVE-2019-12523 Affecting squid:4/libecap-devel package, versions <0:1.0.1-2.module_el8.6.0+2741+01592ae8


Severity

Recommended
medium

Based on AlmaLinux security rating

    Threat Intelligence

    EPSS
    1.07% (85th percentile)

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  • Snyk ID SNYK-ALMALINUX8-SQUID-5617025
  • published 28 May 2023
  • disclosed 3 Nov 2020

How to fix?

Upgrade AlmaLinux:8 squid:4/libecap-devel to version 0:1.0.1-2.module_el8.6.0+2741+01592ae8 or higher.
This issue was patched in ALSA-2020:4743.

NVD Description

Note: Versions mentioned in the description apply only to the upstream squid:4/libecap-devel package and not the squid:4/libecap-devel package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

An issue was discovered in Squid before 4.9. When handling a URN request, a corresponding HTTP request is made. This HTTP request doesn't go through the access checks that incoming HTTP requests go through. This causes all access checks to be bypassed and allows access to restricted HTTP servers, e.g., an attacker can connect to HTTP servers that only listen on localhost.

CVSS Scores

version 3.1
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NVD

9.1 critical
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    None
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SUSE

7.4 high